Saratov JOURNAL of Medical and Scientific Research

physical performance

Methods of evaluation of thermal tolerance of cyclic sports athletes

Summary:

The purpose of the study is investigation of thermal stability in athletes of cyclic sports and assessment of its influence on physical working capacity under hyperthermia. Material and methods. 15 male athletes of cyclic sports who had the senior degree as minimum were included in the study Middle age 24,2±1,1 years. Work was performed in the climatic camera of the Center of sports medicine and rehabilitation in several stages, on each of which assessment of physical working capacity and a thermal condition of athletes was carried out. Results. In the real work the burdening action of the heating climate on indicators of physical working capacity and a thermal condition of athletes of cyclic sports is shown; the operating ranges of high temperatures are determined. Conclusion. The data obtained by means of the offered technique, confirm importance of definition of individual thresholds of shipping of a thermal state at athletes and the burdening action of a heat on their physical working capacity.

AttachmentSize
2017_04-1_955-964.pdf1.46 MB

Morphometric parameters of air in lungs of laboratory rats on physical exercise.

Summary:

Aim: to determine the morphological and functional relationships between the morphometric parameters of lung airness tissue specimens of laboratory rats and indicators of physical endurance while swimming with weights and running on a treadmill. Material and methods. The physical endurance of laboratory rats evaluated in tests of swimming with weights and running on a treadmill using computer video markerless tracking. After strenuous exercise prepared histologic lung stained with hematoxylin and eosin. In morphometric study there were determined areal parameters of lung airness and pulmonary distelectasis. Results. When comparing the results of studies of physical endurance to the morphometric data of lung airness and pulmonary distelectasis identified the parameters of the same type of regression. Between changes in the morphological and physiological characteristics was a strong and average power correlation. The highest coefficient of correlation was established between the indicators of physical endurance and the parameter characterizing the degree of pulmonary distelectasis. Conclusion. Indicators of physical performance were the best in the big lung airness. At the same time, to a lesser extent than in the lung were presented wears off portions of the alveoli, the longer the biological objects to perform physical work. Fitted regression dependence characterizing the effect on physical endurance performance airiness of the lungs and spread them distelectasis.

AttachmentSize
2015_04-01_645-649.pdf712.45 KB

Register indicators of physical endurance of biological objects when running a treadmill and swimming with weights using computer video markerless tracking

Summary:

Purpose: to study the use of video tracking to assess physical endurance and indicators of biological objects fatigue when running on a treadmill and swimming with the load. Material and methods. Physical endurance evaluated by test facilities for running on a treadmill and swimming with the load. As the object of the studies used laboratory rats. Results. For indicators of physical endurance biological objects isolated areas running track of treadmill and electrical stimulation site, when swimming on the total area of the container isolated subarea near the water surface. With video tracking performed computer timing of finding biological object in different zones of the treadmill and containers for swimming. On the basis of data on the time location rats in a given zone apparatus for running and swimming, obtained in the dynamics of the test of physical endurance, build a "fatigue curves", quantified changes in the indices of hard work, depending on the duration of its execution. Conclusion. Video tracking allows to define the execution of physical work to overflowing with loads of aerobic and mixed aerobic-anaerobic power, establish quantitative indicators of changes in the dynamics of biological objects operability testing with the construction of "fatigue curve" and objectively determine the times of occurrence in experimental animals exhaustion when fails to perform physical work.

AttachmentSize
2014_04-01_766-771.pdf469.07 KB